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svp [43]
3 years ago
9

Question 1

Chemistry
2 answers:
poizon [28]3 years ago
8 0

So, what's your question..?. You just gave options..

Kaylis [27]3 years ago
3 0

Answer:

what is the question exactly because there is no question and I don't know what you are exactly looking for

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4Fe + 3O2  2Fe2O3
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Oxidation
iron+oxygen happened
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Would fluorine form a positive or a negative ion?
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e= electron
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Heating galactose, a monosaccharide sugar, in the presence of excess oxygen produces carbon dioxide gas and water vapor. Classif
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3. A compound consists of 91.63 grams of carbon, 7.69 grams of hydrogen and 40.81 grams of
Vikentia [17]

Answer:

Molecular formula = C₁₂H₁₂O₄

Empirical formula is C₃H₃O.

Explanation:

Given data:

Mass of C = 91.63 g

Mass of H = 7.69 g

Mass pf O = 40.81 g

Molar mass of compound = 220 g/mol

Empirical formula = ?

Molecular formula = ?

Solution:

Number of gram atoms of H = 7.69 / 1.01 = 7.61

Number of gram atoms of O = 40.81 / 16 = 2.55

Number of gram atoms of C = 91.63 / 12 = 7.64

Atomic ratio:

            C                      :      H                :         O

           7.64/2.55          :    7.61 /2.55    :       2.55/2.55

               3                     :          3               :        1

C : H : O = 3 : 3 : 1

Empirical formula is C₃H₃O.

Molecular formula:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

Empirical formula mass  = 3×12+ 3×1.01 +16 = 55.03

n = 220 / 55.03

n = 4

Molecular formula = 4 (empirical formula)

Molecular formula = 4 (C₃H₃O)

Molecular formula = C₁₂H₁₂O₄

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3 years ago
Tertiary or top consumers are animals at the top of the food web. They may feed off either primary or secondary consumers. What
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Coyotes, Bald Eagles, & Gray wolf.

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